Horace wyman



(No Model.)

HwWYMAN. STOPPING- MEGHANISM FOR- LOOMSr No. 400,382. Patented Mar. Z6,'1-889..

UNITED STATES PATENT OFFIC HORACE WYMAN, OF WORCESTER,-MASSAOHUSETTS, ASSIGNOR TO THE OROMPTON LOOM WORKS, OF SAME PLACE.

STOPPING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 400,382, dated March 26, 1889.

Application filed January 30, 1888.

To all whom it may concern.-

Be it known that I, HORAGE-WYMAN, of Worcester, in the county of Worcester and State of Massachusetts, have invented an Improvement in Stopping Mechanism for Looms, of which the following description, in connection with the accompanying drawings, is a specification,like letters on the drawings representing like parts.

This invention is an improvement upon the loom described in application for Letters Patent of the United States, Serial No. 192,519, filed February 19, 1886. In that application the lay, near one end, is provided with a lug, which, as the lay is moving forward or toward the breast-beam, the weft having been broken or being absent, meets a bunter mounted in a yielding manner upon or with relation to the loom-frame at or below the breast-beam, the contact of the stop with the bunter effecting the stopping of the lay at that beat thereof in which the fault occurred in the filling, the bunter referred to in the said application, as in this, being under the control of a rod having an arm which is operated upon by or through the intervention of the weft stop mechanism, so that the bunter is elevated in operative position only when the weft fails or is absent.

In practice it has been found that in running at high speed and with a stop and bunter at but one side of the loom the lay is subjected to such excessive twisting strain that the lay or crank-shaft, one or the other, is frequently broken. It is a great desideratum to stop the lay at, that forward movement thereof toward the breast-beam in which they fault in the weft is detected by the usual stop=motion; and to do this and avoid all inj 11- rious twisting strain upon the lay and crankshaft I have provided the lay with two lugs, and have arranged, in connection with the breast-beam or the frame of the loom, two bunters, and have provided the said bunters with intermediate connecting mechanism, whereby when one bunter is raised the other bunter is correspondingly raised, so that the forward movement of the lay toward the breast-beam is checked at opposite ends of the lay rather than at but one end.

Figure 1 in front elevation shows a sufficient portion of a loom partially broken out, which, taken in connection with a loom described in the application referred to, will Serial No. 262,398. (No model).

enable my invention to be understood. Fig. 2 is a section on the line ac 00, Fig. 1.

The loom-frame A, the breast-beam A the lay A, the lug 57, connected by a bolt to the casting 58, the rock-shaft 44, having the arm 86, and having suitable bearings in the stand or stands 43, the bunter f, pivoted at f upon the pawl-carrier f and'provided with the projection f, and the bracket 52, having the ears 51 and '54, the rubber or other spring, 50, and .the bolt 53,are and may be all as in the said application, in which like parts are designated by like letters.

In practice the rock-shaft 44 will be actu= ated at the proper times after the filling shall have become broken or run out, as in the said application, so as to turn the arm 86 of the said rock-shaft, it acting upon the said bunter f to lift the projection f within the range of movement of the lug 57 as the latter approaches the breast beam A In accordance with my invention I have jointed to the bunter f, located at one side of the loom-frame, a rod or link, as b, which in turn is jointed to an arm, as b, of a rock= shaft, 11*, extended across the loom, and provided with a second arm, as 12 which, to a link, b is in turn jointed loosely to abunter, f, mounted upon a stud in a bunter-carrier, f the said bunter-carrier spring and lug 57 being duplicated at each side the loom.

The lay of the loom, its two lugs or projections rigidly attached thereto and ex tended toward the breast-beam, and the two bunters, and means to support them at opposite sides of the loom-frame at or near the breast-beam, combined with the rock =shaft b extended across the loom, the arms I) b thereon, and the links b b intermediate said arms and bunters, whereby the two bunters at opposite sides of the loom are caused to move upward and downward in unison, and a device acting upon one of the said bunters to throw the bunters into position to en gage the lugs on the lay, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HORAOE WYMAN.

WVitnesses:

JUSTIN A. WARE, SAMUEL B. SOHOFIELD. 

